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	Generated v2 prefixes
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								.travis.yml
									
									
									
									
									
								
							
							
						
						
									
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							| @@ -248,34 +248,30 @@ jobs: | ||||
|                   -m "Generated v$LFS2_VERSION_MAJOR prefixes") | ||||
|           git reset --hard | ||||
|           # Update major version branches (vN and vN-prefix) | ||||
|           git push https://$GEKY_BOT_RELEASES@github.com/$TRAVIS_REPO_SLUG.git \ | ||||
|           git push --atomic https://$GEKY_BOT_RELEASES@github.com/$TRAVIS_REPO_SLUG.git \ | ||||
|               v$LFS2_VERSION_MAJOR \ | ||||
|               v$LFS2_VERSION_MAJOR-prefix | ||||
|           # Create patch version tag (vN.N.N) | ||||
|           curl -f -u "$GEKY_BOT_RELEASES" -X POST \ | ||||
|               https://api.github.com/repos/$TRAVIS_REPO_SLUG/git/refs \ | ||||
|               -d "{ | ||||
|                   \"ref\": \"refs/tags/$LFS2_VERSION\", | ||||
|                   \"sha\": \"$TRAVIS_COMMIT\" | ||||
|               }" | ||||
|           # Create minor release? | ||||
|           [[ "$LFS2_VERSION" == *.0 ]] || exit 0 | ||||
|           # Build release notes | ||||
|           PREV=$(git tag --sort=-v:refname -l "v*.0" | head -1) | ||||
|           PREV=$(git tag --sort=-v:refname -l "v*" | head -1) | ||||
|           if [ ! -z "$PREV" ] | ||||
|           then | ||||
|               echo "PREV $PREV" | ||||
|               CHANGES=$'### Changes\n\n'$( \ | ||||
|                   git log --oneline $PREV.. --grep='^Merge' --invert-grep) | ||||
|               CHANGES=$(git log --oneline $PREV.. --grep='^Merge' --invert-grep) | ||||
|               printf "CHANGES\n%s\n\n" "$CHANGES" | ||||
|           fi | ||||
|           # Create the release | ||||
|           case ${GEKY_BOT_DRAFT:-minor} in | ||||
|               true)  DRAFT=true ;; | ||||
|               minor) DRAFT=$(jq -R 'endswith(".0")' <<< "$LFS2_VERSION") ;; | ||||
|               false) DRAFT=false ;; | ||||
|           esac | ||||
|           # Create the release and patch version tag (vN.N.N) | ||||
|           curl -f -u "$GEKY_BOT_RELEASES" -X POST \ | ||||
|               https://api.github.com/repos/$TRAVIS_REPO_SLUG/releases \ | ||||
|               -d "{ | ||||
|                   \"tag_name\": \"$LFS2_VERSION\", | ||||
|                   \"name\": \"${LFS2_VERSION%.0}\", | ||||
|                   \"draft\": true, | ||||
|                   \"target_commitish\": \"$TRAVIS_COMMIT\", | ||||
|                   \"draft\": $DRAFT, | ||||
|                   \"body\": $(jq -sR '.' <<< "$CHANGES") | ||||
|               }" #" | ||||
|           SCRIPT | ||||
|   | ||||
							
								
								
									
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								Makefile
									
									
									
									
									
								
							
							
						
						
									
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								Makefile
									
									
									
									
									
								
							| @@ -29,7 +29,7 @@ override CFLAGS += -DLFS2_YES_TRACE | ||||
| endif | ||||
| override CFLAGS += -I. | ||||
| override CFLAGS += -std=c99 -Wall -pedantic | ||||
| override CFLAGS += -Wextra -Wshadow -Wjump-misses-init | ||||
| override CFLAGS += -Wextra -Wshadow -Wjump-misses-init -Wundef | ||||
| # Remove missing-field-initializers because of GCC bug | ||||
| override CFLAGS += -Wno-missing-field-initializers | ||||
|  | ||||
|   | ||||
							
								
								
									
										98
									
								
								lfs2.c
									
									
									
									
									
								
							
							
						
						
									
										98
									
								
								lfs2.c
									
									
									
									
									
								
							| @@ -7,19 +7,21 @@ | ||||
| #include "lfs2.h" | ||||
| #include "lfs2_util.h" | ||||
|  | ||||
| #define LFS2_BLOCK_NULL ((lfs2_block_t)-1) | ||||
| #define LFS2_BLOCK_INLINE ((lfs2_block_t)-2) | ||||
|  | ||||
| /// Caching block device operations /// | ||||
| static inline void lfs2_cache_drop(lfs2_t *lfs2, lfs2_cache_t *rcache) { | ||||
|     // do not zero, cheaper if cache is readonly or only going to be | ||||
|     // written with identical data (during relocates) | ||||
|     (void)lfs2; | ||||
|     rcache->block = 0xffffffff; | ||||
|     rcache->block = LFS2_BLOCK_NULL; | ||||
| } | ||||
|  | ||||
| static inline void lfs2_cache_zero(lfs2_t *lfs2, lfs2_cache_t *pcache) { | ||||
|     // zero to avoid information leak | ||||
|     memset(pcache->buffer, 0xff, lfs2->cfg->cache_size); | ||||
|     pcache->block = 0xffffffff; | ||||
|     pcache->block = LFS2_BLOCK_NULL; | ||||
| } | ||||
|  | ||||
| static int lfs2_bd_read(lfs2_t *lfs2, | ||||
| @@ -27,7 +29,7 @@ static int lfs2_bd_read(lfs2_t *lfs2, | ||||
|         lfs2_block_t block, lfs2_off_t off, | ||||
|         void *buffer, lfs2_size_t size) { | ||||
|     uint8_t *data = buffer; | ||||
|     LFS2_ASSERT(block != 0xffffffff); | ||||
|     LFS2_ASSERT(block != LFS2_BLOCK_NULL); | ||||
|     if (off+size > lfs2->cfg->block_size) { | ||||
|         return LFS2_ERR_CORRUPT; | ||||
|     } | ||||
| @@ -121,7 +123,7 @@ static int lfs2_bd_cmp(lfs2_t *lfs2, | ||||
|  | ||||
| static int lfs2_bd_flush(lfs2_t *lfs2, | ||||
|         lfs2_cache_t *pcache, lfs2_cache_t *rcache, bool validate) { | ||||
|     if (pcache->block != 0xffffffff && pcache->block != 0xfffffffe) { | ||||
|     if (pcache->block != LFS2_BLOCK_NULL && pcache->block != LFS2_BLOCK_INLINE) { | ||||
|         LFS2_ASSERT(pcache->block < lfs2->cfg->block_count); | ||||
|         lfs2_size_t diff = lfs2_alignup(pcache->size, lfs2->cfg->prog_size); | ||||
|         int err = lfs2->cfg->prog(lfs2->cfg, pcache->block, | ||||
| @@ -171,7 +173,7 @@ static int lfs2_bd_prog(lfs2_t *lfs2, | ||||
|         lfs2_block_t block, lfs2_off_t off, | ||||
|         const void *buffer, lfs2_size_t size) { | ||||
|     const uint8_t *data = buffer; | ||||
|     LFS2_ASSERT(block != 0xffffffff); | ||||
|     LFS2_ASSERT(block != LFS2_BLOCK_NULL); | ||||
|     LFS2_ASSERT(off + size <= lfs2->cfg->block_size); | ||||
|  | ||||
|     while (size > 0) { | ||||
| @@ -201,7 +203,7 @@ static int lfs2_bd_prog(lfs2_t *lfs2, | ||||
|  | ||||
|         // pcache must have been flushed, either by programming and | ||||
|         // entire block or manually flushing the pcache | ||||
|         LFS2_ASSERT(pcache->block == 0xffffffff); | ||||
|         LFS2_ASSERT(pcache->block == LFS2_BLOCK_NULL); | ||||
|  | ||||
|         // prepare pcache, first condition can no longer fail | ||||
|         pcache->block = block; | ||||
| @@ -229,7 +231,7 @@ static inline void lfs2_pair_swap(lfs2_block_t pair[2]) { | ||||
| } | ||||
|  | ||||
| static inline bool lfs2_pair_isnull(const lfs2_block_t pair[2]) { | ||||
|     return pair[0] == 0xffffffff || pair[1] == 0xffffffff; | ||||
|     return pair[0] == LFS2_BLOCK_NULL || pair[1] == LFS2_BLOCK_NULL; | ||||
| } | ||||
|  | ||||
| static inline int lfs2_pair_cmp( | ||||
| @@ -571,7 +573,7 @@ static int lfs2_dir_getread(lfs2_t *lfs2, const lfs2_mdir_t *dir, | ||||
|     while (size > 0) { | ||||
|         lfs2_size_t diff = size; | ||||
|  | ||||
|         if (pcache && pcache->block == 0xfffffffe && | ||||
|         if (pcache && pcache->block == LFS2_BLOCK_INLINE && | ||||
|                 off < pcache->off + pcache->size) { | ||||
|             if (off >= pcache->off) { | ||||
|                 // is already in pcache? | ||||
| @@ -588,7 +590,7 @@ static int lfs2_dir_getread(lfs2_t *lfs2, const lfs2_mdir_t *dir, | ||||
|             diff = lfs2_min(diff, pcache->off-off); | ||||
|         } | ||||
|  | ||||
|         if (rcache->block == 0xfffffffe && | ||||
|         if (rcache->block == LFS2_BLOCK_INLINE && | ||||
|                 off < rcache->off + rcache->size) { | ||||
|             if (off >= rcache->off) { | ||||
|                 // is already in rcache? | ||||
| @@ -606,7 +608,7 @@ static int lfs2_dir_getread(lfs2_t *lfs2, const lfs2_mdir_t *dir, | ||||
|         } | ||||
|  | ||||
|         // load to cache, first condition can no longer fail | ||||
|         rcache->block = 0xfffffffe; | ||||
|         rcache->block = LFS2_BLOCK_INLINE; | ||||
|         rcache->off = lfs2_aligndown(off, lfs2->cfg->read_size); | ||||
|         rcache->size = lfs2_min(lfs2_alignup(off+hint, lfs2->cfg->read_size), | ||||
|                 lfs2->cfg->cache_size); | ||||
| @@ -723,7 +725,7 @@ static int lfs2_dir_traverse(lfs2_t *lfs2, | ||||
|             uint16_t fromid = lfs2_tag_size(tag); | ||||
|             uint16_t toid = lfs2_tag_id(tag); | ||||
|             int err = lfs2_dir_traverse(lfs2, | ||||
|                     buffer, 0, 0xffffffff, NULL, 0, true, | ||||
|                     buffer, 0, LFS2_BLOCK_NULL, NULL, 0, true, | ||||
|                     LFS2_MKTAG(0x600, 0x3ff, 0), | ||||
|                     LFS2_MKTAG(LFS2_TYPE_STRUCT, 0, 0), | ||||
|                     fromid, fromid+1, toid-fromid+diff, | ||||
| @@ -783,15 +785,15 @@ static lfs2_stag_t lfs2_dir_fetchmatch(lfs2_t *lfs2, | ||||
|     // now scan tags to fetch the actual dir and find possible match | ||||
|     for (int i = 0; i < 2; i++) { | ||||
|         lfs2_off_t off = 0; | ||||
|         lfs2_tag_t ptag = 0xffffffff; | ||||
|         lfs2_tag_t ptag = LFS2_BLOCK_NULL; | ||||
|  | ||||
|         uint16_t tempcount = 0; | ||||
|         lfs2_block_t temptail[2] = {0xffffffff, 0xffffffff}; | ||||
|         lfs2_block_t temptail[2] = {LFS2_BLOCK_NULL, LFS2_BLOCK_NULL}; | ||||
|         bool tempsplit = false; | ||||
|         lfs2_stag_t tempbesttag = besttag; | ||||
|  | ||||
|         dir->rev = lfs2_tole32(dir->rev); | ||||
|         uint32_t crc = lfs2_crc(0xffffffff, &dir->rev, sizeof(dir->rev)); | ||||
|         uint32_t crc = lfs2_crc(LFS2_BLOCK_NULL, &dir->rev, sizeof(dir->rev)); | ||||
|         dir->rev = lfs2_fromle32(dir->rev); | ||||
|  | ||||
|         while (true) { | ||||
| @@ -860,7 +862,7 @@ static lfs2_stag_t lfs2_dir_fetchmatch(lfs2_t *lfs2, | ||||
|                 dir->split = tempsplit; | ||||
|  | ||||
|                 // reset crc | ||||
|                 crc = 0xffffffff; | ||||
|                 crc = LFS2_BLOCK_NULL; | ||||
|                 continue; | ||||
|             } | ||||
|  | ||||
| @@ -1248,7 +1250,7 @@ static int lfs2_dir_commitcrc(lfs2_t *lfs2, struct lfs2_commit *commit) { | ||||
|         } | ||||
|  | ||||
|         // read erased state from next program unit | ||||
|         lfs2_tag_t tag = 0xffffffff; | ||||
|         lfs2_tag_t tag = LFS2_BLOCK_NULL; | ||||
|         int err = lfs2_bd_read(lfs2, | ||||
|                 NULL, &lfs2->rcache, sizeof(tag), | ||||
|                 commit->block, noff, &tag, sizeof(tag)); | ||||
| @@ -1274,7 +1276,7 @@ static int lfs2_dir_commitcrc(lfs2_t *lfs2, struct lfs2_commit *commit) { | ||||
|  | ||||
|         commit->off += sizeof(tag)+lfs2_tag_size(tag); | ||||
|         commit->ptag = tag ^ (reset << 31); | ||||
|         commit->crc = 0xffffffff; // reset crc for next "commit" | ||||
|         commit->crc = LFS2_BLOCK_NULL; // reset crc for next "commit" | ||||
|     } | ||||
|  | ||||
|     // flush buffers | ||||
| @@ -1287,7 +1289,7 @@ static int lfs2_dir_commitcrc(lfs2_t *lfs2, struct lfs2_commit *commit) { | ||||
|     lfs2_off_t off = commit->begin; | ||||
|     lfs2_off_t noff = off1; | ||||
|     while (off < end) { | ||||
|         uint32_t crc = 0xffffffff; | ||||
|         uint32_t crc = LFS2_BLOCK_NULL; | ||||
|         for (lfs2_off_t i = off; i < noff+sizeof(uint32_t); i++) { | ||||
|             // leave it up to caching to make this efficient | ||||
|             uint8_t dat; | ||||
| @@ -1341,10 +1343,10 @@ static int lfs2_dir_alloc(lfs2_t *lfs2, lfs2_mdir_t *dir) { | ||||
|  | ||||
|     // set defaults | ||||
|     dir->off = sizeof(dir->rev); | ||||
|     dir->etag = 0xffffffff; | ||||
|     dir->etag = LFS2_BLOCK_NULL; | ||||
|     dir->count = 0; | ||||
|     dir->tail[0] = 0xffffffff; | ||||
|     dir->tail[1] = 0xffffffff; | ||||
|     dir->tail[0] = LFS2_BLOCK_NULL; | ||||
|     dir->tail[1] = LFS2_BLOCK_NULL; | ||||
|     dir->erased = false; | ||||
|     dir->split = false; | ||||
|  | ||||
| @@ -1434,7 +1436,7 @@ static int lfs2_dir_compact(lfs2_t *lfs2, | ||||
|         // find size | ||||
|         lfs2_size_t size = 0; | ||||
|         int err = lfs2_dir_traverse(lfs2, | ||||
|                 source, 0, 0xffffffff, attrs, attrcount, false, | ||||
|                 source, 0, LFS2_BLOCK_NULL, attrs, attrcount, false, | ||||
|                 LFS2_MKTAG(0x400, 0x3ff, 0), | ||||
|                 LFS2_MKTAG(LFS2_TYPE_NAME, 0, 0), | ||||
|                 begin, end, -begin, | ||||
| @@ -1500,7 +1502,7 @@ static int lfs2_dir_compact(lfs2_t *lfs2, | ||||
|                     end = begin; | ||||
|                 } | ||||
|             } | ||||
| #if LFS2_MIGRATE | ||||
| #ifdef LFS2_MIGRATE | ||||
|         } else if (lfs2_pair_cmp(dir->pair, lfs2->root) == 0 && lfs2->lfs21) { | ||||
|             // we can't relocate our root during migrations, as this would | ||||
|             // cause the superblock to get updated, which would clobber v1 | ||||
| @@ -1526,8 +1528,8 @@ static int lfs2_dir_compact(lfs2_t *lfs2, | ||||
|             struct lfs2_commit commit = { | ||||
|                 .block = dir->pair[1], | ||||
|                 .off = 0, | ||||
|                 .ptag = 0xffffffff, | ||||
|                 .crc = 0xffffffff, | ||||
|                 .ptag = LFS2_BLOCK_NULL, | ||||
|                 .crc = LFS2_BLOCK_NULL, | ||||
|  | ||||
|                 .begin = 0, | ||||
|                 .end = lfs2->cfg->block_size - 8, | ||||
| @@ -1556,7 +1558,7 @@ static int lfs2_dir_compact(lfs2_t *lfs2, | ||||
|  | ||||
|             // traverse the directory, this time writing out all unique tags | ||||
|             err = lfs2_dir_traverse(lfs2, | ||||
|                     source, 0, 0xffffffff, attrs, attrcount, false, | ||||
|                     source, 0, LFS2_BLOCK_NULL, attrs, attrcount, false, | ||||
|                     LFS2_MKTAG(0x400, 0x3ff, 0), | ||||
|                     LFS2_MKTAG(LFS2_TYPE_NAME, 0, 0), | ||||
|                     begin, end, -begin, | ||||
| @@ -1682,8 +1684,8 @@ static int lfs2_dir_commit(lfs2_t *lfs2, lfs2_mdir_t *dir, | ||||
|     } | ||||
|  | ||||
|     // calculate changes to the directory | ||||
|     lfs2_tag_t deletetag = 0xffffffff; | ||||
|     lfs2_tag_t createtag = 0xffffffff; | ||||
|     lfs2_tag_t deletetag = LFS2_BLOCK_NULL; | ||||
|     lfs2_tag_t createtag = LFS2_BLOCK_NULL; | ||||
|     for (int i = 0; i < attrcount; i++) { | ||||
|         if (lfs2_tag_type3(attrs[i].tag) == LFS2_TYPE_CREATE) { | ||||
|             createtag = attrs[i].tag; | ||||
| @@ -1729,7 +1731,7 @@ static int lfs2_dir_commit(lfs2_t *lfs2, lfs2_mdir_t *dir, | ||||
|             .block = dir->pair[0], | ||||
|             .off = dir->off, | ||||
|             .ptag = dir->etag, | ||||
|             .crc = 0xffffffff, | ||||
|             .crc = LFS2_BLOCK_NULL, | ||||
|  | ||||
|             .begin = dir->off, | ||||
|             .end = lfs2->cfg->block_size - 8, | ||||
| @@ -1813,8 +1815,8 @@ compact: | ||||
|         if (lfs2_pair_cmp(d->m.pair, copy.pair) == 0) { | ||||
|             d->m = *dir; | ||||
|             if (d->id == lfs2_tag_id(deletetag)) { | ||||
|                 d->m.pair[0] = 0xffffffff; | ||||
|                 d->m.pair[1] = 0xffffffff; | ||||
|                 d->m.pair[0] = LFS2_BLOCK_NULL; | ||||
|                 d->m.pair[1] = LFS2_BLOCK_NULL; | ||||
|             } else if (d->id > lfs2_tag_id(deletetag)) { | ||||
|                 d->id -= 1; | ||||
|                 if (d->type == LFS2_TYPE_DIR) { | ||||
| @@ -2129,7 +2131,7 @@ static int lfs2_ctz_find(lfs2_t *lfs2, | ||||
|         lfs2_block_t head, lfs2_size_t size, | ||||
|         lfs2_size_t pos, lfs2_block_t *block, lfs2_off_t *off) { | ||||
|     if (size == 0) { | ||||
|         *block = 0xffffffff; | ||||
|         *block = LFS2_BLOCK_NULL; | ||||
|         *off = 0; | ||||
|         return 0; | ||||
|     } | ||||
| @@ -2327,6 +2329,7 @@ int lfs2_file_opencfg(lfs2_t *lfs2, lfs2_file_t *file, | ||||
|     file->cfg = cfg; | ||||
|     file->flags = flags | LFS2_F_OPENED; | ||||
|     file->pos = 0; | ||||
|     file->off = 0; | ||||
|     file->cache.buffer = NULL; | ||||
|  | ||||
|     // allocate entry for file if it doesn't exist | ||||
| @@ -2426,7 +2429,7 @@ int lfs2_file_opencfg(lfs2_t *lfs2, lfs2_file_t *file, | ||||
|  | ||||
|     if (lfs2_tag_type3(tag) == LFS2_TYPE_INLINESTRUCT) { | ||||
|         // load inline files | ||||
|         file->ctz.head = 0xfffffffe; | ||||
|         file->ctz.head = LFS2_BLOCK_INLINE; | ||||
|         file->ctz.size = lfs2_tag_size(tag); | ||||
|         file->flags |= LFS2_F_INLINE; | ||||
|         file->cache.block = file->ctz.head; | ||||
| @@ -2614,7 +2617,7 @@ static int lfs2_file_flush(lfs2_t *lfs2, lfs2_file_t *file) { | ||||
|                 } | ||||
|  | ||||
|                 // keep our reference to the rcache in sync | ||||
|                 if (lfs2->rcache.block != 0xffffffff) { | ||||
|                 if (lfs2->rcache.block != LFS2_BLOCK_NULL) { | ||||
|                     lfs2_cache_drop(lfs2, &orig.cache); | ||||
|                     lfs2_cache_drop(lfs2, &lfs2->rcache); | ||||
|                 } | ||||
| @@ -2762,7 +2765,7 @@ lfs2_ssize_t lfs2_file_read(lfs2_t *lfs2, lfs2_file_t *file, | ||||
|                     return err; | ||||
|                 } | ||||
|             } else { | ||||
|                 file->block = 0xfffffffe; | ||||
|                 file->block = LFS2_BLOCK_INLINE; | ||||
|                 file->off = file->pos; | ||||
|             } | ||||
|  | ||||
| @@ -2888,7 +2891,7 @@ lfs2_ssize_t lfs2_file_write(lfs2_t *lfs2, lfs2_file_t *file, | ||||
|                     return err; | ||||
|                 } | ||||
|             } else { | ||||
|                 file->block = 0xfffffffe; | ||||
|                 file->block = LFS2_BLOCK_INLINE; | ||||
|                 file->off = file->pos; | ||||
|             } | ||||
|  | ||||
| @@ -2978,6 +2981,7 @@ int lfs2_file_truncate(lfs2_t *lfs2, lfs2_file_t *file, lfs2_off_t size) { | ||||
|         return LFS2_ERR_INVAL; | ||||
|     } | ||||
|  | ||||
|     lfs2_off_t pos = file->pos; | ||||
|     lfs2_off_t oldsize = lfs2_file_size(lfs2, file); | ||||
|     if (size < oldsize) { | ||||
|         // need to flush since directly changing metadata | ||||
| @@ -3000,8 +3004,6 @@ int lfs2_file_truncate(lfs2_t *lfs2, lfs2_file_t *file, lfs2_off_t size) { | ||||
|         file->ctz.size = size; | ||||
|         file->flags |= LFS2_F_DIRTY | LFS2_F_READING; | ||||
|     } else if (size > oldsize) { | ||||
|         lfs2_off_t pos = file->pos; | ||||
|  | ||||
|         // flush+seek if not already at end | ||||
|         if (file->pos != oldsize) { | ||||
|             int err = lfs2_file_seek(lfs2, file, 0, LFS2_SEEK_END); | ||||
| @@ -3019,6 +3021,7 @@ int lfs2_file_truncate(lfs2_t *lfs2, lfs2_file_t *file, lfs2_off_t size) { | ||||
|                 return res; | ||||
|             } | ||||
|         } | ||||
|     } | ||||
|  | ||||
|     // restore pos | ||||
|     int err = lfs2_file_seek(lfs2, file, pos, LFS2_SEEK_SET); | ||||
| @@ -3026,7 +3029,6 @@ int lfs2_file_truncate(lfs2_t *lfs2, lfs2_file_t *file, lfs2_off_t size) { | ||||
|       LFS2_TRACE("lfs2_file_truncate -> %d", err); | ||||
|       return err; | ||||
|     } | ||||
|     } | ||||
|  | ||||
|     LFS2_TRACE("lfs2_file_truncate -> %d", 0); | ||||
|     return 0; | ||||
| @@ -3374,7 +3376,7 @@ static int lfs2_init(lfs2_t *lfs2, const struct lfs2_config *cfg) { | ||||
|     LFS2_ASSERT(lfs2->cfg->block_size % lfs2->cfg->cache_size == 0); | ||||
|  | ||||
|     // check that the block size is large enough to fit ctz pointers | ||||
|     LFS2_ASSERT(4*lfs2_npw2(0xffffffff / (lfs2->cfg->block_size-2*4)) | ||||
|     LFS2_ASSERT(4*lfs2_npw2(LFS2_BLOCK_NULL / (lfs2->cfg->block_size-2*4)) | ||||
|             <= lfs2->cfg->block_size); | ||||
|  | ||||
|     // block_cycles = 0 is no longer supported. | ||||
| @@ -3412,10 +3414,10 @@ static int lfs2_init(lfs2_t *lfs2, const struct lfs2_config *cfg) { | ||||
|     lfs2_cache_zero(lfs2, &lfs2->rcache); | ||||
|     lfs2_cache_zero(lfs2, &lfs2->pcache); | ||||
|  | ||||
|     // setup lookahead, must be multiple of 64-bits | ||||
|     // setup lookahead, must be multiple of 64-bits, 32-bit aligned | ||||
|     LFS2_ASSERT(lfs2->cfg->lookahead_size > 0); | ||||
|     LFS2_ASSERT(lfs2->cfg->lookahead_size % 8 == 0 && | ||||
|             (uintptr_t)lfs2->cfg->lookahead_buffer % 8 == 0); | ||||
|             (uintptr_t)lfs2->cfg->lookahead_buffer % 4 == 0); | ||||
|     if (lfs2->cfg->lookahead_buffer) { | ||||
|         lfs2->free.buffer = lfs2->cfg->lookahead_buffer; | ||||
|     } else { | ||||
| @@ -3446,8 +3448,8 @@ static int lfs2_init(lfs2_t *lfs2, const struct lfs2_config *cfg) { | ||||
|     } | ||||
|  | ||||
|     // setup default state | ||||
|     lfs2->root[0] = 0xffffffff; | ||||
|     lfs2->root[1] = 0xffffffff; | ||||
|     lfs2->root[0] = LFS2_BLOCK_NULL; | ||||
|     lfs2->root[1] = LFS2_BLOCK_NULL; | ||||
|     lfs2->mlist = NULL; | ||||
|     lfs2->seed = 0; | ||||
|     lfs2->gstate = (struct lfs2_gstate){0}; | ||||
| @@ -4250,7 +4252,7 @@ static int lfs21_dir_fetch(lfs2_t *lfs2, | ||||
|             continue; | ||||
|         } | ||||
|  | ||||
|         uint32_t crc = 0xffffffff; | ||||
|         uint32_t crc = LFS2_BLOCK_NULL; | ||||
|         lfs21_dir_tole32(&test); | ||||
|         lfs21_crc(&crc, &test, sizeof(test)); | ||||
|         lfs21_dir_fromle32(&test); | ||||
| @@ -4435,8 +4437,8 @@ static int lfs21_mount(lfs2_t *lfs2, struct lfs21 *lfs21, | ||||
|         } | ||||
|  | ||||
|         lfs2->lfs21 = lfs21; | ||||
|         lfs2->lfs21->root[0] = 0xffffffff; | ||||
|         lfs2->lfs21->root[1] = 0xffffffff; | ||||
|         lfs2->lfs21->root[0] = LFS2_BLOCK_NULL; | ||||
|         lfs2->lfs21->root[1] = LFS2_BLOCK_NULL; | ||||
|  | ||||
|         // setup free lookahead | ||||
|         lfs2->free.off = 0; | ||||
| @@ -4685,7 +4687,7 @@ int lfs2_migrate(lfs2_t *lfs2, const struct lfs2_config *cfg) { | ||||
|         dir2.pair[1] = dir1.pair[1]; | ||||
|         dir2.rev = dir1.d.rev; | ||||
|         dir2.off = sizeof(dir2.rev); | ||||
|         dir2.etag = 0xffffffff; | ||||
|         dir2.etag = LFS2_BLOCK_NULL; | ||||
|         dir2.count = 0; | ||||
|         dir2.tail[0] = lfs2->lfs21->root[0]; | ||||
|         dir2.tail[1] = lfs2->lfs21->root[1]; | ||||
|   | ||||
| @@ -107,6 +107,57 @@ scripts/test.py << TEST | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
| TEST | ||||
|  | ||||
| echo "--- Write, truncate, and read ---" | ||||
| scripts/test.py << TEST | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|     lfs2_file_open(&lfs2, &file, "sequence", | ||||
|             LFS2_O_RDWR | LFS2_O_CREAT | LFS2_O_TRUNC) => 0; | ||||
|  | ||||
|     lfs2_size_t size = lfs2.cfg->cache_size; | ||||
|     lfs2_size_t qsize = size / 4; | ||||
|     uint8_t *wb = buffer; | ||||
|     uint8_t *rb = buffer + size; | ||||
|     for (lfs2_off_t j = 0; j < size; ++j) { | ||||
|         wb[j] = j; | ||||
|     } | ||||
|  | ||||
|     /* Spread sequence over size */ | ||||
|     lfs2_file_write(&lfs2, &file, wb, size) => size; | ||||
|     lfs2_file_size(&lfs2, &file) => size; | ||||
|     lfs2_file_tell(&lfs2, &file) => size; | ||||
|  | ||||
|     lfs2_file_seek(&lfs2, &file, 0, LFS2_SEEK_SET) => 0; | ||||
|     lfs2_file_tell(&lfs2, &file) => 0; | ||||
|  | ||||
|     /* Chop off the last quarter */ | ||||
|     lfs2_size_t trunc = size - qsize; | ||||
|     lfs2_file_truncate(&lfs2, &file, trunc) => 0; | ||||
|     lfs2_file_tell(&lfs2, &file) => 0; | ||||
|     lfs2_file_size(&lfs2, &file) => trunc; | ||||
|  | ||||
|     /* Read should produce first 3/4 */ | ||||
|     lfs2_file_read(&lfs2, &file, rb, size) => trunc; | ||||
|     memcmp(rb, wb, trunc) => 0; | ||||
|  | ||||
|     /* Move to 1/4 */ | ||||
|     lfs2_file_size(&lfs2, &file) => trunc; | ||||
|     lfs2_file_seek(&lfs2, &file, qsize, LFS2_SEEK_SET) => qsize; | ||||
|     lfs2_file_tell(&lfs2, &file) => qsize; | ||||
|  | ||||
|     /* Chop to 1/2 */ | ||||
|     trunc -= qsize; | ||||
|     lfs2_file_truncate(&lfs2, &file, trunc) => 0; | ||||
|     lfs2_file_tell(&lfs2, &file) => qsize; | ||||
|     lfs2_file_size(&lfs2, &file) => trunc; | ||||
|      | ||||
|     /* Read should produce second quarter */ | ||||
|     lfs2_file_read(&lfs2, &file, rb, size) => trunc - qsize; | ||||
|     memcmp(rb, wb + qsize, trunc - qsize) => 0; | ||||
|  | ||||
|     lfs2_file_close(&lfs2, &file) => 0; | ||||
|     lfs2_unmount(&lfs2) => 0; | ||||
| TEST | ||||
|  | ||||
| echo "--- Truncate and write ---" | ||||
| scripts/test.py << TEST | ||||
|     lfs2_mount(&lfs2, &cfg) => 0; | ||||
|   | ||||
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